Orobanche hederae, Broomrape
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Orobanche hederae Vaucher ex Duby - The following is a citation from www-biol.paisley.ac.uk.
'Orobanche (Broomrape) is a genus of wholly parasitic plants, attached to the roots of their hosts. They lack chlorophyll and hence any green colouration, and their leaves are vestigial. Above-ground stems are produced only for the purpose of flowering and setting seed; in perennial species the plant may persist below ground, unseen for a number of years.
Most species are highly host-specific, sometimes restricted to a single host species or genus. Others are capable of parasitising a number of unrelated plants, but usually still show strong regional preferences. The seeds germinate when in contact with host roots, triggered by chemical recognition. The fine root of the broomrape grows into the host root, reaching and entering the vascular tissue. An underground tuber develops, from which, eventually, the flowering stems may develop.
Broomrapes are thermophilic (warmth-loving) and often highly demanding in their habitat prefences. Frequently they require dry, open, often nutrient-poor grasslands but they are vulnerable to agricultural 'improvement', scrub development or other types of habitat loss. Some also appear to be sensitive to minor climatic changes and may vanish from sites that still appear suitable. Many are extremely local throughout their entire geographical ranges and are now endangered, requiring conservation measures and legislative protection.'
As the name implies, this species is largely parasitic on Ivy (Hedera helix), and is therefore calle Ivy Broomrape. You will find it in shaded areas.
Other names
ESP hierba tora, espárrago de lobo, matalegumbre, Jopo
NL Klimopbremraap
F Orobanche du Lierre
D Efeu-Sommerwurz
UK Bedstraw Broomrape
IT Orobanche dell'edera, Succiamele dell'Edera
DK Vedbend-Gyvelkvжler
See also Wikipedia